20982755264 has 14 divisors (see below), whose sum is σ = 41637655104. Its totient is φ = 10491377600.

The previous prime is 20982755177. The next prime is 20982755281. The reversal of 20982755264 is 46255728902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163927712 + ... + 163927839.

Almost surely, 2^20982755264 is an apocalyptic number.

It is an amenable number.

20982755264 is a deficient number, since it is larger than the sum of its proper divisors (20654899840).

20982755264 is an equidigital number, since it uses as much as digits as its factorization.

20982755264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327855563 (or 327855553 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 20982755264 in words is "twenty billion, nine hundred eighty-two million, seven hundred fifty-five thousand, two hundred sixty-four".